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7ee2227d SP |
1 | /* mathoms.c |
2 | * | |
3 | * Copyright (C) 2005, by Larry Wall and others | |
4 | * | |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * "Anything that Hobbits had no immediate use for, but were unwilling to | |
12 | * throw away, they called a mathom. Their dwellings were apt to become | |
13 | * rather crowded with mathoms, and many of the presents that passed from | |
14 | * hand to hand were of that sort." | |
15 | */ | |
16 | ||
17 | /* | |
18 | * This file contains mathoms, various binary artifacts from previous | |
f2f0f092 NC |
19 | * versions of Perl. For binary or source compatibility reasons, though, |
20 | * we cannot completely remove them from the core code. | |
7ee2227d SP |
21 | * |
22 | * SMP - Oct. 24, 2005 | |
23 | * | |
24 | */ | |
25 | ||
26 | #include "EXTERN.h" | |
27 | #define PERL_IN_MATHOMS_C | |
28 | #include "perl.h" | |
29 | ||
30 | /* ref() is now a macro using Perl_doref; | |
31 | * this version provided for binary compatibility only. | |
32 | */ | |
33 | OP * | |
34 | Perl_ref(pTHX_ OP *o, I32 type) | |
35 | { | |
36 | return doref(o, type, TRUE); | |
37 | } | |
38 | ||
aae9cea0 | 39 | /* |
174c73e3 NC |
40 | =for apidoc sv_unref |
41 | ||
42 | Unsets the RV status of the SV, and decrements the reference count of | |
43 | whatever was being referenced by the RV. This can almost be thought of | |
44 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
45 | being zero. See C<SvROK_off>. | |
46 | ||
47 | =cut | |
48 | */ | |
49 | ||
50 | void | |
51 | Perl_sv_unref(pTHX_ SV *sv) | |
52 | { | |
53 | sv_unref_flags(sv, 0); | |
54 | } | |
55 | ||
56 | /* | |
aae9cea0 NC |
57 | =for apidoc sv_taint |
58 | ||
59 | Taint an SV. Use C<SvTAINTED_on> instead. | |
60 | =cut | |
61 | */ | |
62 | ||
63 | void | |
64 | Perl_sv_taint(pTHX_ SV *sv) | |
65 | { | |
66 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); | |
67 | } | |
68 | ||
7ee2227d SP |
69 | /* sv_2iv() is now a macro using Perl_sv_2iv_flags(); |
70 | * this function provided for binary compatibility only | |
71 | */ | |
72 | ||
73 | IV | |
74 | Perl_sv_2iv(pTHX_ register SV *sv) | |
75 | { | |
76 | return sv_2iv_flags(sv, SV_GMAGIC); | |
77 | } | |
78 | ||
79 | /* sv_2uv() is now a macro using Perl_sv_2uv_flags(); | |
80 | * this function provided for binary compatibility only | |
81 | */ | |
82 | ||
83 | UV | |
84 | Perl_sv_2uv(pTHX_ register SV *sv) | |
85 | { | |
86 | return sv_2uv_flags(sv, SV_GMAGIC); | |
87 | } | |
88 | ||
89 | /* sv_2pv() is now a macro using Perl_sv_2pv_flags(); | |
90 | * this function provided for binary compatibility only | |
91 | */ | |
92 | ||
93 | char * | |
94 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) | |
95 | { | |
96 | return sv_2pv_flags(sv, lp, SV_GMAGIC); | |
97 | } | |
98 | ||
5abc721d NC |
99 | /* |
100 | =for apidoc sv_force_normal | |
101 | ||
102 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
103 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
104 | an xpvmg. See also C<sv_force_normal_flags>. | |
105 | ||
106 | =cut | |
107 | */ | |
108 | ||
109 | void | |
110 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
111 | { | |
112 | sv_force_normal_flags(sv, 0); | |
113 | } | |
7ee2227d SP |
114 | |
115 | /* sv_setsv() is now a macro using Perl_sv_setsv_flags(); | |
116 | * this function provided for binary compatibility only | |
117 | */ | |
118 | ||
119 | void | |
120 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) | |
121 | { | |
122 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); | |
123 | } | |
124 | ||
125 | /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags(); | |
126 | * this function provided for binary compatibility only | |
127 | */ | |
128 | ||
129 | void | |
130 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) | |
131 | { | |
132 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); | |
133 | } | |
134 | ||
135 | /* sv_catsv() is now a macro using Perl_sv_catsv_flags(); | |
136 | * this function provided for binary compatibility only | |
137 | */ | |
138 | ||
139 | void | |
140 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
141 | { | |
142 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
143 | } | |
144 | ||
145 | /* sv_pv() is now a macro using SvPV_nolen(); | |
146 | * this function provided for binary compatibility only | |
147 | */ | |
148 | ||
149 | char * | |
150 | Perl_sv_pv(pTHX_ SV *sv) | |
151 | { | |
152 | if (SvPOK(sv)) | |
153 | return SvPVX(sv); | |
154 | ||
155 | return sv_2pv(sv, 0); | |
156 | } | |
157 | ||
158 | /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags(); | |
159 | * this function provided for binary compatibility only | |
160 | */ | |
161 | ||
162 | char * | |
163 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) | |
164 | { | |
165 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); | |
166 | } | |
167 | ||
168 | /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags(); | |
169 | * this function provided for binary compatibility only | |
170 | */ | |
171 | ||
172 | char * | |
173 | Perl_sv_pvbyte(pTHX_ SV *sv) | |
174 | { | |
175 | sv_utf8_downgrade(sv,0); | |
176 | return sv_pv(sv); | |
177 | } | |
178 | ||
179 | /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags(); | |
180 | * this function provided for binary compatibility only | |
181 | */ | |
182 | ||
183 | char * | |
184 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
185 | { | |
186 | sv_utf8_upgrade(sv); | |
187 | return sv_pv(sv); | |
188 | } | |
189 | ||
190 | /* | |
191 | =for apidoc A|U8 *|uvchr_to_utf8|U8 *d|UV uv | |
192 | ||
193 | Adds the UTF-8 representation of the Native codepoint C<uv> to the end | |
194 | of the string C<d>; C<d> should be have at least C<UTF8_MAXBYTES+1> free | |
195 | bytes available. The return value is the pointer to the byte after the | |
196 | end of the new character. In other words, | |
197 | ||
198 | d = uvchr_to_utf8(d, uv); | |
199 | ||
200 | is the recommended wide native character-aware way of saying | |
201 | ||
202 | *(d++) = uv; | |
203 | ||
204 | =cut | |
205 | */ | |
206 | ||
207 | /* On ASCII machines this is normally a macro but we want a | |
208 | real function in case XS code wants it | |
209 | */ | |
210 | #undef Perl_uvchr_to_utf8 | |
211 | U8 * | |
212 | Perl_uvchr_to_utf8(pTHX_ U8 *d, UV uv) | |
213 | { | |
214 | return Perl_uvuni_to_utf8_flags(aTHX_ d, NATIVE_TO_UNI(uv), 0); | |
215 | } | |
216 | ||
217 | ||
218 | /* | |
219 | =for apidoc A|UV|utf8n_to_uvchr|U8 *s|STRLEN curlen|STRLEN *retlen|U32 | |
220 | flags | |
221 | ||
222 | Returns the native character value of the first character in the string | |
223 | C<s> | |
224 | which is assumed to be in UTF-8 encoding; C<retlen> will be set to the | |
225 | length, in bytes, of that character. | |
226 | ||
227 | Allows length and flags to be passed to low level routine. | |
228 | ||
229 | =cut | |
230 | */ | |
231 | /* On ASCII machines this is normally a macro but we want | |
232 | a real function in case XS code wants it | |
233 | */ | |
234 | #undef Perl_utf8n_to_uvchr | |
235 | UV | |
236 | Perl_utf8n_to_uvchr(pTHX_ const U8 *s, STRLEN curlen, STRLEN *retlen, | |
237 | U32 flags) | |
238 | { | |
239 | const UV uv = Perl_utf8n_to_uvuni(aTHX_ s, curlen, retlen, flags); | |
240 | return UNI_TO_NATIVE(uv); | |
241 | } | |
242 | int | |
243 | Perl_fprintf_nocontext(PerlIO *stream, const char *format, ...) | |
244 | { | |
245 | dTHXs; | |
246 | va_list(arglist); | |
247 | va_start(arglist, format); | |
248 | return PerlIO_vprintf(stream, format, arglist); | |
249 | } | |
250 | ||
251 | int | |
252 | Perl_printf_nocontext(const char *format, ...) | |
253 | { | |
254 | dTHX; | |
255 | va_list(arglist); | |
256 | va_start(arglist, format); | |
257 | return PerlIO_vprintf(PerlIO_stdout(), format, arglist); | |
258 | } | |
259 | ||
260 | #if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)) | |
261 | /* | |
262 | * This hack is to force load of "huge" support from libm.a | |
263 | * So it is in perl for (say) POSIX to use. | |
264 | * Needed for SunOS with Sun's 'acc' for example. | |
265 | */ | |
266 | NV | |
267 | Perl_huge(void) | |
268 | { | |
269 | # if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL) | |
270 | return HUGE_VALL; | |
271 | # endif | |
272 | return HUGE_VAL; | |
273 | } | |
274 | #endif | |
275 | ||
276 | #ifndef USE_SFIO | |
277 | int | |
278 | perlsio_binmode(FILE *fp, int iotype, int mode) | |
279 | { | |
280 | /* | |
281 | * This used to be contents of do_binmode in doio.c | |
282 | */ | |
283 | #ifdef DOSISH | |
284 | # if defined(atarist) || defined(__MINT__) | |
285 | if (!fflush(fp)) { | |
286 | if (mode & O_BINARY) | |
287 | ((FILE *) fp)->_flag |= _IOBIN; | |
288 | else | |
289 | ((FILE *) fp)->_flag &= ~_IOBIN; | |
290 | return 1; | |
291 | } | |
292 | return 0; | |
293 | # else | |
294 | dTHX; | |
295 | #ifdef NETWARE | |
296 | if (PerlLIO_setmode(fp, mode) != -1) { | |
297 | #else | |
298 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { | |
299 | #endif | |
300 | # if defined(WIN32) && defined(__BORLANDC__) | |
301 | /* | |
302 | * The translation mode of the stream is maintained independent | |
303 | of | |
304 | * the translation mode of the fd in the Borland RTL (heavy | |
305 | * digging through their runtime sources reveal). User has to | |
306 | set | |
307 | * the mode explicitly for the stream (though they don't | |
308 | document | |
309 | * this anywhere). GSAR 97-5-24 | |
310 | */ | |
311 | fseek(fp, 0L, 0); | |
312 | if (mode & O_BINARY) | |
313 | fp->flags |= _F_BIN; | |
314 | else | |
315 | fp->flags &= ~_F_BIN; | |
316 | # endif | |
317 | return 1; | |
318 | } | |
319 | else | |
320 | return 0; | |
321 | # endif | |
322 | #else | |
323 | # if defined(USEMYBINMODE) | |
324 | dTHX; | |
325 | if (my_binmode(fp, iotype, mode) != FALSE) | |
326 | return 1; | |
327 | else | |
328 | return 0; | |
329 | # else | |
330 | PERL_UNUSED_ARG(fp); | |
331 | PERL_UNUSED_ARG(iotype); | |
332 | PERL_UNUSED_ARG(mode); | |
333 | return 1; | |
334 | # endif | |
335 | #endif | |
336 | } | |
337 | #endif /* sfio */ | |
338 | ||
f2f0f092 NC |
339 | /* compatibility with versions <= 5.003. */ |
340 | void | |
341 | Perl_gv_fullname(pTHX_ SV *sv, const GV *gv) | |
342 | { | |
343 | gv_fullname3(sv, gv, sv == (const SV*)gv ? "*" : ""); | |
344 | } | |
345 | ||
346 | /* compatibility with versions <= 5.003. */ | |
347 | void | |
348 | Perl_gv_efullname(pTHX_ SV *sv, const GV *gv) | |
349 | { | |
350 | gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : ""); | |
351 | } | |
352 | ||
2674aeec NC |
353 | void |
354 | Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix) | |
355 | { | |
356 | gv_fullname4(sv, gv, prefix, TRUE); | |
357 | } | |
358 | ||
359 | void | |
360 | Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix) | |
361 | { | |
362 | gv_efullname4(sv, gv, prefix, TRUE); | |
363 | } | |
364 | ||
b966a812 SP |
365 | AV * |
366 | Perl_av_fake(pTHX_ register I32 size, register SV **strp) | |
367 | { | |
368 | register SV** ary; | |
369 | register AV * const av = (AV*)NEWSV(9,0); | |
370 | ||
371 | sv_upgrade((SV *)av, SVt_PVAV); | |
372 | Newx(ary,size+1,SV*); | |
373 | AvALLOC(av) = ary; | |
374 | Copy(strp,ary,size,SV*); | |
375 | AvREIFY_only(av); | |
376 | SvPV_set(av, (char*)ary); | |
377 | AvFILLp(av) = size - 1; | |
378 | AvMAX(av) = size - 1; | |
379 | while (size--) { | |
380 | assert (*strp); | |
381 | SvTEMP_off(*strp); | |
382 | strp++; | |
383 | } | |
384 | return av; | |
385 | } | |
386 | ||
34d367cd SP |
387 | bool |
388 | Perl_do_open9(pTHX_ GV *gv, register const char *name, I32 len, int | |
389 | as_raw, | |
390 | int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, | |
391 | I32 num_svs) | |
392 | { | |
393 | PERL_UNUSED_ARG(num_svs); | |
394 | return do_openn(gv, name, len, as_raw, rawmode, rawperm, | |
395 | supplied_fp, &svs, 1); | |
396 | } | |
397 | ||
398 | int | |
399 | Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode) | |
400 | { | |
401 | /* The old body of this is now in non-LAYER part of perlio.c | |
402 | * This is a stub for any XS code which might have been calling it. | |
403 | */ | |
404 | const char *name = ":raw"; | |
405 | #ifdef PERLIO_USING_CRLF | |
406 | if (!(mode & O_BINARY)) | |
407 | name = ":crlf"; | |
408 | #endif | |
409 | return PerlIO_binmode(aTHX_ fp, iotype, mode, name); | |
410 | } | |
411 | ||
412 | ||
7ee2227d SP |
413 | /* |
414 | * Local variables: | |
415 | * c-indentation-style: bsd | |
416 | * c-basic-offset: 4 | |
417 | * indent-tabs-mode: t | |
418 | * End: | |
419 | * | |
420 | * ex: set ts=8 sts=4 sw=4 noet: | |
421 | */ |